K52.9

Billable

ChapterK00–K95

Ranksubcategory

Official Description

Noninfective gastroenteritis and colitis, unspecified

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

Includes

Colitis NOS
Enteritis NOS
Gastroenteritis NOS
Ileitis NOS
Jejunitis NOS
Sigmoiditis NOS

Excludes1(Not coded here)

diarrhea NOS (R19.7)
functional diarrhea (K59.1)
infectious gastroenteritis and colitis NOS (A09)
neonatal diarrhea (noninfective) (P78.3)
psychogenic diarrhea (F45.8)

General instructions are available for the parent sections:

View CH11 Notes View K50-K52 Notes

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)

K50-K52Noninfective enteritis and colitis (K50-K52)

K52Other and unspecified noninfective gastroenteritis and colitis

K52.9Noninfective gastroenteritis and colitis, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K52.9:

blockK50-K52

Noninfective enteritis and colitis (K50-K52)

View context instructions

chapterCH11

Diseases of the digestive system (K00-K95)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K52.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

18 raw paths

Cecitis1 unique routes

Direct index entry→K52.9

Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)2 unique routes

Direct index entry→K52.9

noninfective→K52.9

Diarrhea, diarrheal (disease) (infantile) (inflammatory)2 unique routes

chronic (noninfectious)→K52.9

noninfectious→K52.9

Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective)3 unique routes

Direct index entry→K52.9

chronic (noninfectious)→K52.9

noninfectious→K52.9

Enterocolitis2 unique routes

Direct index entry→K52.9

noninfectious→K52.9

Gastroenteritis (acute) (chronic) (noninfectious)2 unique routes

Direct index entry→K52.9

noninfectious→K52.9

Gastroenteropathy1 unique routes

Direct index entry→K52.9

Gastrojejunitis1 unique routes

Direct index entry→K52.9

Ileitis (chronic) (noninfectious)1 unique routes

Direct index entry→K52.9

Ileocolitis1 unique routes

Direct index entry→K52.9

Sigmoiditis2 unique routes

Direct index entry→K52.9

noninfectious→K52.9

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 391

Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC

DRG 392

Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC

Cross Reference

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